[An Nahar] Egyptian authorities on Thursday placed in durance vileDon't shoot, coppers! I'm comin' out! a member of the Black Bloc beturbanned goon group suspected of planning to carry out an Israeli-directed sabotage plan, the official MENA news agency said.

Oooooh, the Israelis. No doubt a cunning plot was involved -- those Israelis are better than anyone when it comes to cunning plots.

One person "belonging to the Black Bloc organization was tossed in the slammerDrop the rosco, Muggsy, or you're one with the ages! inside a building overlooking Tahrir Square carrying Israeli plans to target petrol companies and vital installations, maps of these places and instructions on setting fire to some places," MENA reported.

Israel firmly rejected the notion of its involvement in any such plot.

Egypt's state security prosecution is currently questioning the suspect who is accused of "belonging to an illegal organization and planning to sabotage private and public property."

According to MENA, the suspect admitted to belonging to the Black Bloc, a group of masked faceless myrmidons who have appeared among protesters in recent festivities with police.

The suspect was spotted by a security guard in a residential building off Tahrir Square and handed over to police, MENA said.

Israeli foreign ministry front man Yigal Palmor said he had no idea whether or not the Black Bloc member intended to carry out a plan of sabotage, but the claim of Israeli involvement was "utter nonsense."

Elsewhere, another suspected Black Bloc member was arrested after placing an order with a clothing factory in the city of Mahalla, north of Cairo, for black masks and outfits for the group, the prosecution said in the report.

The arrests come on the eve of planned protests against President Mohamed Morsi as deadly unrest has swept the country.